
CloudConvert
Convertio
Squoosh
Pixlocal
PixHeic
TinyPNG
iMazing HEIC Converter
Convert AVIF, WebP, HEIC to JPG, PNG instantly. 100% browser-based — your files never leave your device.

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | pixflip.app | certdecoder.com |
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In their own words, as submitted to SaaSHub.


PixFlip is a free online image converter that runs entirely in your browser. No files are uploaded to any server — all conversion happens locally. Supports: WebP, AVIF, HEIC, JPG, PNG, GIF, BMP, SVG. Batch conversion, quality control, ZIP download. Built for privacy: no registration, no cookies,...
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PixFlip.app and Cert Decoder.
PixFlip.app's answer
Built out of frustration with existing image converters that upload your personal photos to their servers, show ads on every click, and limit free usage. PixFlip proves that modern browsers are powerful enough to handle image conversion entirely client-side.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
PixFlip.app's answer
WebAssembly for high-quality image processing, modern web technologies for the interface. Everything runs in the browser — no server-side processing.
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
PixFlip.app's answer
Anyone who needs to convert images quickly without installing software — photographers dealing with HEIC from iPhones, web developers optimizing images to WebP/AVIF, designers converting between formats, and privacy-conscious users who don't want to upload files to unknown servers.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PixFlip.app's answer
Privacy and speed. Most online converters upload your files to their servers — PixFlip doesn't. Conversion happens instantly in your browser, even offline. No registration, no file size queues, no watermarks. Unlimited batch conversion for free.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
PixFlip.app's answer
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PixFlip.app's answer
100% browser-based conversion. Your files never leave your device — everything runs locally using WebAssembly. No upload, no server processing, no waiting in queues. Supports modern formats like AVIF and HEIC that most competitors don't handle client-side.
Share your experience with using PixFlip.app and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking PixFlip.app since Mar 2026.
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
When comparing PixFlip.app and Cert Decoder, you can also consider the following products.

convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.
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Compress and compare images with different codecs, right in your browser
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Compress and convert images to AVIF, WebP, and JPEG in your browser. No upload, no server. Your files never leave your device.
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Convert HEIC to JPG entirely inside your browser. No uploads, no servers, no limits.
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Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
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